Home / 1,224,358.12-1,689,605.22-687,814.12

Finding the Fourth Proportional to 1,224,358.12, 1,689,605.22 and 687,814.12

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Solution

The fourth proportional to 1,224,358.12, 1,689,605.22 and 687,814.12 is: 949,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,358.12 : 1,689,605.22 = 687,814.12 : x
  2. Step 2: Convert to fraction form
    1,224,358.12/1,689,605.22 = 687,814.12/x
  3. Step 3: Cross multiply
    1,224,358.12x = 1,689,605.22 × 687,814.12
  4. Step 4: Simplify right side
    1,224,358.12x = 1,162,134,327,541.71
  5. Step 5: Solve for x
    x = 1,162,134,327,541.71/1,224,358.12
  6. Step 6: Final answer
    x = 949,178.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.